Abstract: The resin anchor comprises an apertured tubular envelope designed to be compressed by a traction element, characterized in that it includes, on the inside of the envelope, a resin component and a hardener component that are intended to be mixed together and to cure under the action of the compression of the envelope, in order to fasten the anchor. The traction element is a stud having a threaded rod part that cooperates with a tapped traction element firmly attached to the end of the bushing. The anchor is fastened both mechanically and chemically, for either solid material or hollow material.

Abstract: The resin anchor comprises an apertured tubular envelope designed to be compressed by a traction element, characterized in that it includes, on the inside of the envelope, a resin component and a hardener component that are intended to be mixed together and to cure under the action of the compression of the envelope (1), in order to fasten the anchor, at least one of the two components being sacheted, the mix formed from the two components being expelled out of the envelope via its apertures, during its compression. The traction element may be a screw that cooperates with the end element of the bushing CD forming a nut. The anchor is fastened both mechanically and chemically, for either solid material or hollow material.

Abstract: There is described a stair system insertable into a pool having a top edge surface and bottom surface, comprising a stair portion defining steps and risers each having a fixed height, the stair portion having a support portion projecting from an uppermost one of the risers and adapted to be seated against the top edge surface of the pool, and a ballasted booster positioned below the stair portion at any one of given locations in the bottom of the stair portion and lying against the bottom surface of the pool. The stair system has a height adjustable by the position of the booster with respect to the bottom of the stair portion as a function of the height between the top edge surface and the bottom of the pool.

Abstract: The resin anchor comprises an apertured tubular envelope designed to be compressed by a traction element, characterized in that it includes, on the inside of the envelope, a resin component and a hardener component that are intended to be mixed together and to cure under the action of the compression of the envelope, in order to fasten the anchor. The traction element is a stud having a threaded rod part that cooperates with a tapped traction element firmly attached to the end of the bushing. The anchor is fastened both mechanically and chemically, for either solid material or hollow material.

Abstract: The fastening base plate includes a conduit for receiving the plug and support means intended to be applied to the component to be fastened. The plug comprises a shank and a head and the means for receiving the fastening plug comprise the conduit for guiding and damping the shank of the plug. The base plate moreover includes a damping cup in which the conduit, following compression by the head of the plug having a larger diameter than the conduit, and the head of the plug are intended to be housed once the plug has been driven through the base plate. The cup made of elastic material and the conduit are designed in such a manner that the cooperation between the plug shank and the conduit when the plug is driven through the base plate leads the cup to at least partially cover the head of the plug. The invention is particularly suitable for fastening wiring ducts.

Abstract: A screw anchor includes a roughly cylindrical body (1) with a drilling portion (3) provided, at its free end, with drilling teeth (14-16), at the other end of the body, a bearing flange (5) and an external screw thread (7). The drilling portion (3) is configured as a portion of a drill bit.

Abstract: A hydrotherapy assembly including a connector and a jet device. The connector has a first portion directly connected to a return line port of the swimming pool and a second portion protruding in the pool. The jet device has a water entry port detachably connected to the second portion, an air entry port receiving air, and at least one jet valve. Each jet valve has water and air inlets in fluid communication respectively with the water and air entry ports and an outlet in fluid communication with the water and air inlets and letting through a mixed flow of air and water. The jet device is removable when not in use by detaching the water entry port from the second portion. A hydrotherapy device with a substantially rectangular casing and a method of installing a hydrotherapy device are also disclosed.

Abstract: The screw anchor comprises a roughly cylindrical body (1) with a drilling portion (3) provided, at its free end, with drilling teeth (14-16), at the other end of the body, a bearing flange (5) and an external screw thread (7), characterized in that the drilling portion (3) is configured as a portion of a drill bit.

Abstract: The expanding sleeve (1) of the anchor has an interior bore (13) and an expander plug (15) which are conical, with roughly the same cone angle, and designed so as, through the wedge effect caused by the plug (15) being driven into the sleeve (1) to cause it to expand. The sleeve (1) has, at its periphery, an annular weakening groove (9) intended, during expansion, to shorten its axial expansion length.

Abstract: The expanding sleeve (1) of the anchor comprises an interior bore (13) and an expander plug (15) which are conical, with roughly the same cone angle, and designed so as, through the wedge effect caused by the plug (15) being driven into the sleeve (1) to cause it to expand. The sleeve (1) comprises, at its periphery, an annular weakening groove (9) intended, during expansion, to shorten its axial expansion length.

Abstract: An anchor bolt comprises a fixing rod (1), an expandable sleeve (2) and an expansion core (3) integral in translation with the fixing rod (1), intended to expand the sleeve (2). The sleeve (2) has a plurality of slots (9,9′) widening towards the free end of the sleeve (2), forming a plurality of expansion teeth (18-20) cooperating with the expansion core (3). The inner wall of the edge of the teeth (18-20) is blunt and the thickness of each tooth is bevelled to decrease towards the free end of the sleeve.

Abstract: The anchor bolt comprises a generally hollow body (1) with a drilling end (4), a supporting collar (5) at the other end and an external screw thread (6). The collar (5) forms two openings (10, 11), diametrically opposed, for receiving an anti-rotation pin (8, 9) removably fixed to the collar (5) and movable in the opening (10, 11). The pins (8, 9) are intended to anchor both in the collar (5) and in the receiving material, in order to prevent rotation of the bolt.

Abstract: A spray gun for dispensing two liquids under pressure independently from one another or both simultaneously to form a mixture. The spray gun has a barrel in which are independently displaced two valves which are each spring biased to a closed position. A pair of trigger levers are pivotally secured to a single handle of the spray gun and independently or simultaneously actuable by the fingers of a single hand of the user person whereby to dispense two fluids independently or simultaneously. The valves are mounted coaxially within one another within the barrel of the gun. The valve assembly is easily removed from the barrel of the gun to facilitate servicing and assembly.

Abstract: A cartridge has a multiple casing comprising an outer casing (1) with a front end piece (2) for receiving an application nozzle and an annular rear thrust wall (4) mounted slidingly in the outer casing (1), and at least one inner casing (5) with a front end piece (6) extending inside the end piece (2) of the outer casing (1) and a disc-shaped rear thrust wall. Shoulders and rib (8, 14, 16) for connecting the two outer (1) and inner (5) casings together ensures their mutual locking in axial and radial positions. A drive assembly is structured like the cartridge. The invention is well suited to the application of sealing resins.

Abstract: A cartridge has a multiple casing comprising an outer casing (1) with a front end piece (2) for receiving an application nozzle and an annular rear thrust wall (4) mounted slidingly in the outer casing (1), and at least one inner casing (5) with a front end piece (6) extending inside the end piece (2) of the outer casing (1) and a disc-shaped rear thrust wall. Shoulders and ribs (8, 14, 16) for connecting the two outer (1) and inner (5) casings together ensures their mutual locking in axial and radial positions. A drive assembly is structured like the cartridge. The invention is well suited to the application of sealing resins.

Abstract: The bolt assembly comprises a traction shaft 1 with an anchoring extremity 13, an expansion ring 2 formed by means of expansible leg elements 18,19, and a brace 3 disposed around the shaft 1 and supported against a shoulder 24 provided upon the expansion elements 18, 19 in order to provoke expansion of leg portions 22, 23 with an undercut portion of an anchoring hole. The expansion elements 18, 19 extend between the shaft 1 and the brace 3 so as to give the latter a bearing surface of the same length as the legs 22, 23. The shoulder zone 24 defines an articulation region for the legs 22, 23.The bolt assembly is used for the fixing of pieces within a zone subject to tensile forces within a building material.